Ji-eum has an extraordinary ability to remember memories of all her past lives. Her 18th life as 12-year-old Joo-won when she first met Seo-ha was cut short by an unexpected accident. She had always wanted to forget her previous lives in each of her previous lives. However, this time she prayed for God to let her remember Seo-ha in her next life. Reborn as Ji-eum, she sets out to reconnect with the people of her past life in her current one. Will memories of her 18th life sabotage romance in her 19th? Or will love endure across different lives?